Google has been criticized for tracking your personal information wherever you go on the Internet. The NSA has been criticized for using your personal information. How closely have the two worked?

According to emails, pretty closely.

Despite Google's assurance that they worked with the NSA only when compelled by the law, the emails indicate Google and the NSA had a close working relationship.

As early as June 2012, Google officials were being briefed by NSA officials on "classified threats." The NSA was asking Google and other Silicon Valley companies to help monitor the Internet.

Jennifer Granick, director of civil liberties at Stanford Law School’s Center for Internet and Society, said she believes information sharing between industry and the government is “absolutely essential” but “at the same time, there is some risk to user privacy and to user security from the way the vulnerability disclosure is done.”